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Hearing impairment, cognition and speech understanding: exploratory factor analyses of a comprehensive test battery for a group of hearing aid users, the n200 study
Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden; Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Linköping, Sweden.
Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden; Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Linköping, Sweden; Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden; Eriksholm Research Centre, Snekkersten, Denmark.
Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping University, Linköping, Sweden.
Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden.
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2016 (English)In: International Journal of Audiology, ISSN 1499-2027, E-ISSN 1708-8186, Vol. 55, no 11, 623-642 p.Article in journal (Refereed) Published
Abstract [en]

Objective: The aims of the current n200 study were to assess the structural relations between three classes of test variables (i.e. HEARING, COGNITION and aided speech-in-noise OUTCOMES) and to describe the theoretical implications of these relations for the Ease of Language Understanding (ELU) model. Study sample: Participants were 200 hard-of-hearing hearing-aid users, with a mean age of 60.8 years. Forty-three percent were females and the mean hearing threshold in the better ear was 37.4 dB HL. Design: LEVEL1 factor analyses extracted one factor per test and/or cognitive function based on a priori conceptualizations. The more abstract LEVEL 2 factor analyses were performed separately for the three classes of test variables. Results: The HEARING test variables resulted in two LEVEL 2 factors, which we labelled SENSITIVITY and TEMPORAL FINE STRUCTURE; the COGNITIVE variables in one COGNITION factor only, and OUTCOMES in two factors, NO CONTEXT and CONTEXT. COGNITION predicted the NO CONTEXT factor to a stronger extent than the CONTEXT outcome factor. TEMPORAL FINE STRUCTURE and SENSITIVITY were associated with COGNITION and all three contributed significantly and independently to especially the NO CONTEXT outcome scores (R2 = 0.40). Conclusions: All LEVEL 2 factors are important theoretically as well as for clinical assessment.

Place, publisher, year, edition, pages
2016. Vol. 55, no 11, 623-642 p.
Keyword [en]
Hearing impairment, temporal fine structure, cognition, working memory capacity, executive functions, phonology, outcome, context
National Category
Applied Psychology
Identifiers
URN: urn:nbn:se:hig:diva-22182DOI: 10.1080/14992027.2016.1219775ISI: 000384319900004PubMedID: 27589015ScopusID: 2-s2.0-84984887773OAI: oai:DiVA.org:hig-22182DiVA: diva2:950461
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2012-1693Swedish Research Council, 349-2007-8654
Available from: 2016-07-30 Created: 2016-07-30 Last updated: 2016-11-18Bibliographically approved

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